Ratomski Karol, Wysocka Jolanta, Skotnicka Bozena, Zelazowska-Rutkowska Beata, Hassmann-Poznańska Elzbieta
Zakład Laboratoryjnej Diagnostyki Pediatrycznej AM w Białymstoku.
Otolaryngol Pol. 2006;60(4):565-70.
Otitis media with effusion (WZU) is highly prevalent among young children. The hypertrophied adenoid favorables to development (WZU). The pharyngeal tonsil delivers the essential lymphocytes for developed immunological answer. The migrations of lymphocytes to pharyngeal tonsil and to places inflammatory proceed with part of adhesive molecules (CD11a, CD54) presented on lymphocytes. The aim of this study was examination the percentage of the lymphocytes CD4+, CD8+ and lymphocytes B with expression of adhesion molecules ICAM-1 (CD54) and LFA-1 (CD11a). We examined their expression in hypertrophied adenoid by children with otitis media with effusion.
In investigations was showed statistically significant decrease of percentage of lymphocytes CD4+CD11a+ and CD8+CD11a+ and increase of percentage of lymphocytes CD19+CD54+ in otitis media with effusion in comparison to group with hypertrophied adenoid.
Molecule adhesive ICAM-1 and LFA-1 fulfills important part in many immunological processes proceed to pharyngeal tonsil. The considerably lower percentage of lymphocytes T CD4+ and CD8+ with expression LFA-1 in hypertrophied adenoids is possibly of causes of incorrect their immunological answer, and the same factor favourables to prolonging the otitis media with effusion at children.
分泌性中耳炎(OME)在幼儿中非常普遍。腺样体肥大有利于分泌性中耳炎的发展。咽扁桃体为发育完善的免疫反应提供必需的淋巴细胞。淋巴细胞向咽扁桃体和炎症部位的迁移是通过淋巴细胞上呈现的部分黏附分子(CD11a、CD54)进行的。本研究的目的是检测表达黏附分子ICAM-1(CD54)和LFA-1(CD11a)的CD4+、CD8+淋巴细胞和B淋巴细胞的百分比。我们检测了分泌性中耳炎患儿肥大腺样体中这些分子的表达情况。
研究显示,与腺样体肥大组相比,分泌性中耳炎组中CD4+CD11a+和CD8+CD11a+淋巴细胞百分比有统计学意义的下降,而CD19+CD54+淋巴细胞百分比增加。
黏附分子ICAM-1和LFA-1在许多向咽扁桃体进行的免疫过程中起重要作用。肥大腺样体中表达LFA-1的CD4+和CD8+T淋巴细胞百分比显著降低,可能是其免疫反应异常的原因,并且同一因素有利于延长儿童分泌性中耳炎的病程。